What is every Big Ten Conference team's record against the over/under line as an underdog in the 2007-2008 season?

Definitions
Team Over Record Over % Under % Total +/-
Purdue 7-4-0 63.6% 36.4% +10.8
Illinois 7-7-0 50.0% 50.0% +0.8
Wisconsin 2-2-0 50.0% 50.0% -2.1
Iowa 9-10-0 47.4% 52.6% -3.5
Michigan 10-12-0 45.5% 54.5% -2.0
Penn State 8-10-0 44.4% 55.6% -2.4
Northwestern 8-13-0 38.1% 61.9% -1.0
Michigan St 3-6-0 33.3% 66.7% -4.4
Minnesota 5-10-0 33.3% 66.7% -5.8
Ohio State 3-7-0 30.0% 70.0% -6.2
Indiana 1-3-0 25.0% 75.0% -2.2